A federal judge in Casper will hear up to three hours of testimony on Tuesday from attorneys for three states and two petroleum industry groups petitioning to block new rules for oil and gas drilling that are set to go into effect on Wednesday.

A landmark federal study on hydraulic fracturing, or fracking, shows no evidence that chemicals from the natural gas drilling process moved up to contaminate drinking water at a western Pennsylvania drilling site

Governor Matt Mead said he is pleased with District Judge Catherine Wilking's order affirming Wyoming's policy regarding the disclosure of hydraulic fracturing components. Environmental groups had requested the ingredient lists from the Wyoming Oil and Gas conservation commission, arg…

The Wyoming Oil and Gas Commission is being challenged in court for allegedly granting inappropriate trade secret requests under Hydraulic Fracturing Disclosure Rule.A coalition of environmental groups are calling for the commission to honor the intent of the rule designed to inform the public about…

The Environmental Protection Agency’s study of groundwater contamination and links to hydraulic fracturing in Pavillion was the topic of a U-S House subcommittee hearing Wednesday. No one locally affected was invited to the hearing, which was expected to include criticism of the E-P-…

The U.S. Environmental Protection Agency is seeking nominees for a peer review panel that will be asked to take a close look at an EPA draft report that theorizes a link between hydraulic fracturing and groundwater pollution in a Wyoming gas field...